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Fig. 1

image

Hertzsprung-Russell diagram for HD 49310 (filled circle) and the sample of well-established CP2 stars (open circles) from Netopil et al. (2008). The full lines represent the zero- and terminal-age main-sequence from the evolutionary grids by Schaller et al. (1992) for solar metallicity. The stellar mass and radius, relative to each track, are indicated in the plot in solar units.

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